Kennedy, M. (2013). Introducing geographic information systems with arcgis: Workbook approach to learning gis (Third edition.). Wiley.
Chicago-referens (17:e uppl.)Kennedy, Michael. Introducing Geographic Information Systems with Arcgis: Workbook Approach to Learning Gis. Third edition. Hoboken: Wiley, 2013.
MLA-referens (9:e uppl.)Kennedy, Michael. Introducing Geographic Information Systems with Arcgis: Workbook Approach to Learning Gis. Third edition. Wiley, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.